Half of his eight to paul larson



L. A. SWEATT. Wheeled-Scrapers.

' Patented Aprii 20,1880.

Invc n-Zzor N- PETERS. PllOmI-JTHOGRAFNER. WASHINGTON D C UNITED STATESPATENT OFFIC LEROY A. SWEATT, OF SANTA CLARA, CALIFORNIA, ASSIGNOR OFONE- HALF OF HIS RIGHT TO PAUL LARSON, OF SAME PLACE.

WHEELED SCRAPER.

SPECIFICATION forming part of Letters Patent No. 226,686, dated April20, 1880.

Application filed December 27, 1879.

To all whom it may concern Be it known that I. LEROY A. SWEATT, of thetown and county of Santa Clara, and State of California, have invented aScraping and Grading Machine; and I hereby declare the following to be afull, clear, and exact description thereof.

My invention relates to certain improvements in scraping and gradingmachines; and my improvements consist in suspending under suitableframing mounted on wheels an adjustable scraper so regulated andadjusted by means of levers that while scraping its rear end may beraised so as to bring it to any desired angle, and that when filled itsfront end may be raised so as to lift it, with a load, entirely off theground. When in this position it may be carried suspended between thewheels to any desired point, where, by still farther raising the rearend, the contents of the scraper may be dumped, as is more fullydescribed in the accompanying drawings, in which- Figure 1 is aperspective view of my invention. Fig. 2 is a longitudinal section.

The frame-work or body A consists of suitable supports or braces mountedupon the four Wheels B, the whole being similar to the ordinaryrunning-gear of a common farm-wagon. Under this body is suspended ascraper, O, by means of the hangers a b and the braces F. The hangers aare pivoted below to the front end of the scraper and above to atransverse bar or plate, D, one hanger being pivoted at each end of thisplate, as shown. To the center of this plate or bar is a hinged curvedrod, (1, to which is pivoted the operating-lever E. The hanger orsupport I) is pivoted to the central rear portion of the scraper andabove to the curved hinged rod (1, to which is connected the lever E, asshown. Both levers E E are at the front ofthe wagon near the driversseat. Hinged. braces F extend from the rear axles to the forwardopposite corners of the scraper, where they are pivoted. These bracesserve to prevent the scraper curved rod 07-, and lever E.

hand.

being pushed back when dragged over the ground.

In scraping off the surface of ground to level it the front edge of thescraper is lowered by means of the lever and hangers to the requiredposition, and the angle of the face of the scraper is regulated by meansof the other hanger, b, The braces F take the rearward strain on thescraper.

If it is desired to utilize the scraper to lift up and carry the dirtaway, the rear end is lifted by the lever E and the scraper set at anangle so that the movement of the vehicle over the ground will fill it.Then, when filled, the lever E is drawn forward, which operates theplate or bar D and pivoted hangers 0., thus lifting the front end up tothe height of the rear end and holding the scraper level. The load iscarried in this position until the dumping-place is reached, when astill farther forward motion of the lever E will elevate the rear end ofthe scraper higher, and thus dump the load.

Rack-bars may be used to control the movements of the levers.

I11 this way I am enabled to provide a convenient device for levelingand scraping, and which serves also for conveying quantities of earth,850., away from one point to another and dumping it whererequired.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The vehicle A B and rearward braces F, in combination with the plate D,hinged at one edge to the vehicle, and carrying hangers a a, pivoted tothe ends of the other edge, scraper 0, link I), curved levers d d, andlevers E E, with connecting-rods, all constructed and arranged as setforth. y

In witness whereof I have hereunto set my LEROY A. SWEATT. Witnesses:

J. FATJO,

J. S. PARKER.

